John, who was morbidly obese for decades, said he got sick and tired of being fat and unhealthy.

“It was a waste,” said Goodman, who starred on Roseanne from 1988 to 1997. “It takes a lot of creative energy to sit on your *ss and figure out what you’re going to eat next. I wanted to live life better.”

John Goodman lost over 100 pounds through diet and exercise after he quit drinking and smoking. (Photos: YouTube)

John quit smoking cigarettes and drinking alcohol in 2007 and started training with fitness coach Mackie Shilstone, who previously worked with tennis champ Serena Williams.

Goodman hit the gym six days a week and followed a sugar-free Mediterranean-style diet.

John’s determination and athleticism impressed Shilstone.

“John is very agile,” said Shilstone, the author of The Fat-Burning Bible. “He remembers what it feels like to be extremely heavy and it’s something he doesn’t want again.”